#include "upperToLower.h"
using namespace std;
<<<<<<< HEAD:cxx/algorithm/src/upperToLower.cc
string upperToLower(std::string str){
    for(auto &i:str){
        i^=32;
    }
    return str;
=======
string upperToLower(std::string str) {
  for (auto &i : str) {
    i ^= 32;
  }
  return str;
>>>>>>> dev:cxx/algorithm/common/src/upperToLower.cc
}